Ctrl+shift+p puts the cursor in the command search where you can find all the commands including extension related commands. Ctrl+w j puts the cursor in the terminal.
VS code is entirely navigable with key strokes even with Vim emulator
As mentioned, extensions is one example. How do you resize the sidebar? Or resizing the vertical size of the "Outline" pane?
To be honest, guess it was a long time ago I last used VS Code, but when I did, I ended up in situations where it wasn't suitable to use the keyboard too many times.
VS code is entirely navigable with key strokes even with Vim emulator